Coached throughout career by mother, Melanie Molitor ... Began skiing and playing tennis at age 2, entered tournaments at 4; moved to Switzerland at 8 ... Enjoys skiing, swimming, horseback riding (horses' names are Montana, Sorrenta, Velvet) ... Favorite cities to visit are Paris, Zürich and New York ... Lists most memorable experiences as winning first WTA title at 1996 Filderstadt, first Grand Slam title at 1997 Australian Open, beating V.Williams in 1997 US Open final, playing Graf in 1999 Roland Garros final and winning home title in Zürich in seventh attempt (beating Davenport) ... Immortalized in wax at famous Madame Tussaud's Wax Museum, London ... Invited to Academy Awards by famed Swiss director Arthur Cohn (Central Station) ... Enjoys musicals (favorites are Miss Saigon and Lion King) and shopping (favorite designers are Gucci, D, Roberto Cavalli) ... Was ESPN commentator for 2004 Wimbledon ... Named after Martina Navratilova.

Awards and Accomplishments:

- Awards received include Tour Comeback Player of the Year, presented in Miami in March 2007 for her 2006 achievements; World Comeback of the Year Award at 2006 Laureus World Sports Awards; Tour’s Diamond ACES Award in 2000; Tour Doubles Team of the Year in 1999 (w/Kournikova) and 1998 (w/Novotna); 1997 Player of the Year by the Tour, the International Tennis Federation and Tennis Magazine; Associated Press Female Athlete of the Year for 1997; 1996 Tour Most Improved Player; 1995 Tour Most Impressive Newcomer Award; and 1995 TENNIS Magazine Female Rookie of the Year.

- Elected to Tour Players' Council in 2002.

- Her coach and mother, Melanie Molitor, was named 1997 Coach of the Year by the Swiss Sports Federation, becoming first woman to win the award, and also by Tennis Magazine.

- To celebrate Tour's 30th Anniversary, attended on-court ceremony at 2003 Championships that honored 13 world No.1 champions (past and present), and founding members of the Tour.

- One of five female tennis players named to the 2000 Forbes magazine Power 100 in Fame and Fortune list at No.51; no other female athletes made the list.

- First female athlete to be on the cover of the American men’s magazine GQ in June 1998.

- 1999 Roland Garros final (Graf d. Hingis) was voted by worldwide fans as Greatest Match in 30-Year History of the Tour (online voting for two months; included ballot of 16 matches).

- Except for Roland Garros, has won every major Tour event (Grand Slams, Tour Championships and Tier I tournaments), including all four surfaces, at least once in her career.

- Tour mentor was Chris Evert in the Partners for Success Alumni program.

- Holds five Grand Slam titles (winning Australian Open, Wimbledon and US Open in 1997, then winning Australian Open again in 1998 and 1999); reached seven more finals (three at Australian Open, two at Roland Garros and two at US Open).

- Also holds 11 Grand Slam doubles titles (three w/Novotna, two w/Kournikova, two w/Mirza and one each w/Sukova, Zvereva, Lucic and Pierce) and five in mixed (four w/Paes and one w/Bhupathi).

- Holds 43 WTA titles and 50 WTA doubles titles.

- Held No.1 for 209 non-consecutive weeks in singles (fifth all-time) and for 35 non-consecutive weeks in doubles; was first Swiss to hold either; held both simultaneously for 27 non-consecutive weeks, one of now-five players to achieve the feat (also Navratilova, Sánchez-Vicario, Davenport, Clijsters).

- Led Switzerland to its only Fed Cup final in 1998; 2-1 in final loss to Spain (d. Sánchez-Vicario, Martínez; w/Schnyder, l. to Martínez/Sánchez-Vicario).

- Played and won first career tournament on ITF Circuit in Switzerland, her only event of 1993; made WTA debut at Zürich in 1994; career-best year was 1997, her decade-best .938 winning percentage bringing her 12 titles (incl. three majors).

- Was fourth woman in history to compile calendar-year doubles Grand Slam, in 1998 (won Australian Open w/Lucic and Roland Garros, Wimbledon and US Open w/Novotna).

- Underwent left ankle surgery on May 20, 2002 to repair four ligaments (one torn and three loose), missing Roland Garros and Wimbledon that year (her first Grand Slam absences since turning pro in 1994); withdrew from last three events of year due to continued pain in left ankle, citing premature return from surgery; missed 2003 and 2004 seasons as part of indefinite break; played one event in 2005 (at Pattaya City; as unranked WC, l. 1r); on November 29, 2005, announced full-scale return in 2006; impressive comeback season, winning two more singles titles, one more doubles title and first Grand Slam mixed doubles title, also notching five Top 10 wins and working her way back to No.6 in the world (and qualifying for WTA Finals); also strong start to 2007, winning 43rd WTA title at Tokyo [Pan Pacific], but struggled with injury during remainder of sophomore comeback season (particularly left hip), losing early at last Grand Slam (US Open) and last event (Beijing), withdrawing from Stuttgart and Zürich and ultimately announcing re-retirement on November 1, 2007.

- Came out of retirement in summer of 2013 to play exclusively in doubles (currently active).